{"id":"S85089215","label":"Myelin sheath","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85089215","normalized_label":"myelin sheath","broader":["http://id.loc.gov/authorities/subjects/sh85021654","http://id.loc.gov/authorities/subjects/sh85077309","http://id.loc.gov/authorities/subjects/sh85090897"],"aliases":["Medullary sheath (Nerve tissue)","Schwann's white substance","White substance of Schwann"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85089215","provider":"lcsh","revision":"6b9a14008146ef44","taxonomy_revision":"f050b5d4780b1289","title":"Myelin sheath","url":"/topics/S85089215","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10126563681719436864","address_version":"morton4x16-v1","coordinates":[0,20,18798,64512],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}